SOLVED All PDF files changed to Avast HTML Documents

All of a sudden all my saved PDF files in Windows 10 have been change to Avast HTML.Document - As well as when I scan files to .pdf on a usb stick they show up as Avast HTML Documents. very frustrating and haven't found a solution, hopefully until now, on here

Last edited by a moderator: Dec 11, 2017

Norton

Joined Feb 18, 2016 Messages 2,835 Reaction score 631

Can right click on a file and select "Open with" the default viewer.
Or open settings > Default Apps > Choose default apps by file type.

Wolfie

Joined Apr 22, 2017 Messages 5,468 Reaction score 682

further to @Norton's tip,there is a nice graphical description here:

Tigerlicious

Joined Jun 10, 2018 Messages 1 Reaction score 2

All of a sudden all my saved PDF files in Windows 10 have been change to Avast HTML.Document - As well as when I scan files to .pdf on a usb stick they show up as Avast HTML Documents. very frustrating and haven't found a solution, hopefully until now, on here

You may already have figured this out. But I just got a laptop with Windows 10, and the same thing happened to me. I fixed the problem by doing the following:

1. Right-click on any Avast HTML document
2. Select "Properties" at the bottom of the drop-down menu
3. When the window pops up, it should be on the "General" tab view
4. In this pop-up window, look for "Opens with:", and you'll see the program currently associated with the file (in this case "Avast HTML Document"); next to this will be a "Change" button
5. Click on the "Change" button. When another window pops up asking "How do you want to open [current program] files from now on?", click on "More apps" under OTHER OPTIONS and select Adobe Acrobat.
6. Click OK,
7. Exit.

You should be all set. Note: If the "Change" button is grayed out, then that's another issue, and unfortunately I don't know how to work around that.

jsylves

Joined May 6, 2019 Messages 3 Reaction score 0

You may already have figured this out. But I just got a laptop with Windows 10, and the same thing happened to me. I fixed the problem by doing the following:

1. Right-click on any Avast HTML document
2. Select "Properties" at the bottom of the drop-down menu
3. When the window pops up, it should be on the "General" tab view
4. In this pop-up window, look for "Opens with:", and you'll see the program currently associated with the file (in this case "Avast HTML Document"); next to this will be a "Change" button
5. Click on the "Change" button. When another window pops up asking "How do you want to open [current program] files from now on?", click on "More apps" under OTHER OPTIONS and select Adobe Acrobat.
6. Click OK,
7. Exit.

You should be all set. Note: If the "Change" button is grayed out, then that's another issue, and unfortunately I don't know how to work around that.

Well, I have hundreds of Adobe PDF files. I think it is Avast, rather than Window 10, that changes them. ALL my files are now Avast HTML files. I don't want to have to change them all one at a time. Can I fix all of them somehow quickly? Also, how can I keep Avast from doing this again? I was chatting with Avast and got dropped, so I don't think I can count on Avast to help.